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Metal-Coating Composition.
Patent for a metal coating composition to form a protective coating on metals and steel to prevent rust and corrosion.
Date:
May 24, 1921
Creator:
Ethridge, Thomas Jefferson
System:
The Portal to Texas History
Voting Machine.
Patent for a new and improved voting-machine. This design consists in "the combination, with the transverse bridge, through the opening of which are fulcrumed by means of a pin two parallel keys, said keys having pivotally connected to their fulcrumed ends to parallel pawls, the free ends of which mesh with teeth in two ratchet-wheels carrying hands indicating on a dial and having eccentrics upon their faces, two parallel narrow plates moved by such eccentrics to indicate the complete revolution of the hands, and a shield upon the top" (lines 124-134).
Date:
January 24, 1888
Creator:
Ford, William W.
System:
The Portal to Texas History
Watch-Pocket.
Patent for a holder or pocket for a watch that provides a simple, safe, and handy device which is detachable fastened to a garment.
Date:
July 24, 1906
Creator:
Greenwald, Louis.
System:
The Portal to Texas History